JPS57111826A - Detecting system of track shift - Google Patents

Detecting system of track shift

Info

Publication number
JPS57111826A
JPS57111826A JP55185378A JP18537880A JPS57111826A JP S57111826 A JPS57111826 A JP S57111826A JP 55185378 A JP55185378 A JP 55185378A JP 18537880 A JP18537880 A JP 18537880A JP S57111826 A JPS57111826 A JP S57111826A
Authority
JP
Japan
Prior art keywords
supplied
signal
circuit
mixer
input terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP55185378A
Other languages
Japanese (ja)
Other versions
JPS6321977B2 (en
Inventor
Seisuke Hirakuri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Nippon Victor KK
Original Assignee
Victor Company of Japan Ltd
Nippon Victor KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd, Nippon Victor KK filed Critical Victor Company of Japan Ltd
Priority to JP55185378A priority Critical patent/JPS57111826A/en
Publication of JPS57111826A publication Critical patent/JPS57111826A/en
Publication of JPS6321977B2 publication Critical patent/JPS6321977B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE:To detect a shift of track, by giving the level wave detection to pilot signals by a level wave detecting means and then comparing these levels with each other. CONSTITUTION:The video signal supplied from an input terminal 1 is supplied to an FM modulator 2 as well as to a synchronous signal separated by the circuit 3 is supplied to a phase comparator 4. When the head changeover pulse is supplied to a control circuit 9 from an input terminal 8, the circuit 9 switches the control signal and supplies to a divider 7. The output of a voltage control oscillator 6 is supplied to a mixer 10 in the form of a pilot signal to be mixed with an FM modulation signal through the mixer 10. This mixture signal is recorded on a magnetic tape 12 by a recording head 11.
JP55185378A 1980-12-29 1980-12-29 Detecting system of track shift Granted JPS57111826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55185378A JPS57111826A (en) 1980-12-29 1980-12-29 Detecting system of track shift

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55185378A JPS57111826A (en) 1980-12-29 1980-12-29 Detecting system of track shift

Publications (2)

Publication Number Publication Date
JPS57111826A true JPS57111826A (en) 1982-07-12
JPS6321977B2 JPS6321977B2 (en) 1988-05-10

Family

ID=16169748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55185378A Granted JPS57111826A (en) 1980-12-29 1980-12-29 Detecting system of track shift

Country Status (1)

Country Link
JP (1) JPS57111826A (en)

Also Published As

Publication number Publication date
JPS6321977B2 (en) 1988-05-10

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